Sure, playing Sonic on the Oculus Rift could potentially be dangerous -- both if you haven't gotten "VR legs" yet, and if riding on real-life roller coasters makes you squeamish -- but still. This version of Sonic the Hedgehog looks fantastic.
The footage comes from Chadtronic, who is playing through a version of Sonic on the Unreal 3 engine. Earlier this month, he also tried Mario 64 on the Oculus Rift,and I'll be honest... Sonic looks like it would be more fun on the Rift. I'm a big roller coaster enthusiast and the controls on the Rift version of Mario are wonky though, so there you go.
Sonic the Hedgehog GDK Oculus Rift in First Person [Chadtronic]